f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
128 lines
4.3 KiB
Groff
128 lines
4.3 KiB
Groff
.\" $NetBSD: posix_spawnattr_init.3,v 1.2 2012/03/23 18:08:35 njoly Exp $
|
|
.\"
|
|
.\" Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" Portions of this text are reprinted and reproduced in electronic form
|
|
.\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology --
|
|
.\" Portable Operating System Interface (POSIX), The Open Group Base
|
|
.\" Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of
|
|
.\" Electrical and Electronics Engineers, Inc and The Open Group. In the
|
|
.\" event of any discrepancy between this version and the original IEEE and
|
|
.\" The Open Group Standard, the original IEEE and The Open Group Standard is
|
|
.\" the referee document. The original Standard can be obtained online at
|
|
.\" http://www.opengroup.org/unix/online.html.
|
|
.\"
|
|
.\" $FreeBSD: src/lib/libc/gen/posix_spawnattr_init.3,v 1.1.2.1.4.1 2010/06/14 02:09:06 kensmith Exp $
|
|
.\"
|
|
.Dd December 20, 2011
|
|
.Dt POSIX_SPAWNATTR_INIT 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm posix_spawnattr_init ,
|
|
.Nm posix_spawnattr_destroy
|
|
.Nd "initialize and destroy spawn attributes object"
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In spawn.h
|
|
.Ft int
|
|
.Fn posix_spawnattr_init "posix_spawnattr_t * attr"
|
|
.Ft int
|
|
.Fn posix_spawnattr_destroy "posix_spawnattr_t * attr"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn posix_spawnattr_init
|
|
function initializes a spawn attributes object
|
|
.Fa attr
|
|
with the default value for all of the individual attributes used by the
|
|
implementation.
|
|
Initializing an already initialized spawn attributes object may cause
|
|
memory to be leaked.
|
|
.Pp
|
|
The
|
|
.Fn posix_spawnattr_destroy
|
|
function destroys a spawn attributes object.
|
|
A destroyed
|
|
.Fa attr
|
|
attributes object can be reinitialized using
|
|
.Fn posix_spawnattr_init .
|
|
The object should not be used after it has been destroyed.
|
|
.Pp
|
|
A spawn attributes object is of type
|
|
.Vt posix_spawnattr_t
|
|
(defined in
|
|
.In spawn.h )
|
|
and is used to specify the inheritance of process attributes across a
|
|
spawn operation.
|
|
.Pp
|
|
The resulting spawn attributes object (possibly modified by setting
|
|
individual attribute values), is used to modify the behavior of
|
|
.Fn posix_spawn
|
|
or
|
|
.Fn posix_spawnp .
|
|
After a spawn attributes object has been used to spawn a process by a
|
|
call to a
|
|
.Fn posix_spawn
|
|
or
|
|
.Fn posix_spawnp ,
|
|
any function affecting the attributes object (including destruction)
|
|
will not affect any process that has been spawned in this way.
|
|
.Sh RETURN VALUES
|
|
Upon successful completion,
|
|
.Fn posix_spawnattr_init
|
|
and
|
|
.Fn posix_spawnattr_destroy
|
|
return zero;
|
|
otherwise, an error number is returned to indicate the error.
|
|
.Sh ERRORS
|
|
The
|
|
.Fn posix_spawnattr_init
|
|
function will fail if:
|
|
.Bl -tag -width Er
|
|
.It Bq Er ENOMEM
|
|
Insufficient memory exists to initialize the spawn file actions object.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr posix_spawn 3 ,
|
|
.Xr posix_spawnp 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn posix_spawnattr_init
|
|
and
|
|
.Fn posix_spawnattr_destroy
|
|
functions conform to
|
|
.St -p1003.1-2001 .
|
|
.Sh HISTORY
|
|
The
|
|
.Fn posix_spawnattr_init
|
|
and
|
|
.Fn posix_spawnattr_destroy
|
|
functions first appeared in
|
|
.Fx 8.0
|
|
and imported for
|
|
.Nx 6.0 .
|
|
.Sh AUTHORS
|
|
.An Ed Schouten Aq ed@FreeBSD.org
|